Correct Answer: C

Rationale: The best antihypertensive agent for clients with asthma is metoprolol (Lopressor), a beta2 blocking agent which is also cardioselective and less likely to cause bronchoconstriction.

Correct Answer: A

Rationale: Emphasizing the benefits of immunizations helps parents understand the importance of vaccines in protecting their children from preventable diseases.

Correct Answer: C

Rationale: A heart rate of 90 beats per minute requires immediate intervention when assessing a client receiving a blood transfusion. This finding can indicate a potential transfusion reaction, such as a hemolytic reaction or fluid overload, which requires prompt evaluation and management to prevent serious complications. While a temperature of 100.4°F (38°C) may indicate a mild fever, it is not typically an immediate concern during a blood transfusion. A blood pressure of 110/70 mm Hg is within the normal range, and complaints of feeling cold can be addressed but do not indicate an urgent need for intervention compared to the critical nature of a potential transfusion reaction indicated by an elevated heart rate.

Correct Answer: D

Rationale: Seeing halos around lights is a symptom of digoxin toxicity, which should be reported to the healthcare provider.

Correct Answer: B

Rationale: Intermittent bubbling in the suction control chamber is the correct observation indicating effective functioning of the chest tube. This bubbling signifies that the suction system is working correctly and maintaining the desired negative pressure in the pleural space. Continuous bubbling in the water-seal chamber suggests an air leak, which is not a normal finding. No fluctuation (tidaling) in the water-seal chamber may indicate a blockage or lack of communication between the pleural space and the water-seal, which is not ideal. Drainage of clear, pale yellow fluid from the chest tube is a normal finding, but it does not specifically indicate the effectiveness of the chest tube function.